Aspiring voice actress Kohana Non, whose sensitive body gets wet from kissing alone, makes her Fitch debut. She enrolls at the same school as the performer she admires and earnestly absorbs every lesson, determined to succeed. Men around her notice both her innocent charm and her unconsciously seductive body, then pressure her to recite filthy lines under the pretense that it is voice-acting practice. Unable to resist strongly, Non becomes aroused by the words as her body grows increasingly sensitive.